49617889 has 2 divisors, whose sum is σ = 49617890. Its totient is φ = 49617888.

The previous prime is 49617863. The next prime is 49617899. The reversal of 49617889 is 98871694.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47610000 + 2007889 = 6900^2 + 1417^2 .

It is a cyclic number.

It is not a de Polignac number, because 49617889 - 2¹⁵ = 49585121 is a prime.

It is not a weakly prime, because it can be changed into another prime (49617839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24808944 + 24808945.

It is an arithmetic number, because the mean of its divisors is an integer number (24808945).

Almost surely, 2^49617889 is an apocalyptic number.

It is an amenable number.

49617889 is a deficient number, since it is larger than the sum of its proper divisors (1).

49617889 is an equidigital number, since it uses as much as digits as its factorization.

49617889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 52.

The square root of 49617889 is about 7043.9966638266. The cubic root of 49617889 is about 367.4622763506.

The spelling of 49617889 in words is "forty-nine million, six hundred seventeen thousand, eight hundred eighty-nine".